package com.briup.me_blog.util;

import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

public class MD5Utils {
    public static  String code(String str){
        try {
            MessageDigest md = MessageDigest.getInstance("MD5");
            md.update(str.getBytes());
            byte[]byteDigest = md.digest();
            int i;
            StringBuffer buf = new StringBuffer("");
            for (int offset = 0 ; offset<byteDigest.length; offset++){
                i = byteDigest[offset];
                if (i<0)
                    i += 256;
                    if (i<16)
                      buf.append("0");
                      buf.append(Integer.toHexString(i));
            }
            //32位加密
            return buf.toString();
            //16位加密
            //return buf.toString().substring(8,24);
        } catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
            return null;
        }

    }
    public  static  void  main(String[] args){
        System.out.println(code("111111"));
    }
}
